<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge,chrome=1">
    <meta name="author" content="王佳佳">
    <title></title>
    <style>
        *
        {
            box-sizing: border-box;
        }
        body
        {
            margin: 0;
        }
        section
        {
            border: 2px solid;
            width: 504px;
            height: 204px;
            margin: 50px auto;
            /* padding-top: -10px; */
        }
        ul
        {
            /* border: 1px solid; */
            width: 500px;
            height: 100px;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: space-between;
            list-style: none;
        }
        li
        {
            width: 100px;
            height: 100px;
        }
        li img
        {
            width: 100px;
            height: 100px;
            opacity: 0.5;
        }
        li img:hover
        {
            opacity: 1;
        }
    </style>
</head>
<body>
    <section>
        <ul>
            <li><img src="img/1.jpg" alt=""></li>
            <li><img src="img/2.jpg" alt=""></li>
            <li><img src="img/3.jpg" alt=""></li>
            <li><img src="img/4.jpg" alt=""></li>
            <li><img src="img/5.jpg" alt=""></li>
        </ul>
        <ul>
            <li><img src="img/6.jpg" alt=""></li>
            <li><img src="img/7.jpg" alt=""></li>
            <li><img src="img/8.jpg" alt=""></li>
            <li><img src="img/9.jpg" alt=""></li>
            <li><img src="img/10.jpg" alt=""></li>
        </ul>
    </section>
</body>
</html>